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12

Effective January 2017

NOVA

®

 15i, NOVA 27i, and NOVA 38i; Three-phase

microprocessor-controlled; installation and operation
instructions (S280-43-1)

Instructional Literature 

IL0104001E

Operation

Electrical operation

The NOVA i recloser utilizes an interface circuit located in the 
mechanism housing. The electronic interface circuit controls the 
opening and closing signals to the magnetic actuator.

OPEN/CLOSE contact position indicator

The OPEN/CLOSE contact position indicator consists of a red 
CLOSED and a green OPEN indicator located on the bottom of the 
mechanism housing (see Figure 13).

Hotstick operation (manual open, electrical 
close)

The recloser may be opened manually by using a hotstick to pull 
down the yellow manual OPEN handle, located on the front of the 
recloser (see Figure 13). To close the recloser after a manual 
opening, first, push the yellow manual open handle up. Then, using 
the microprocessor control, close the recloser.

 

If the yellow manual OPEN handle remains in the down position, the recloser 
cannot be closed electrically from the control.

IMPORTANT

This equipment is not intended to protect human life. Follow all locally 
approved procedures and safety practices when installing or operating 
this equipment. Failure to comply can result in death, severe personal 
injury, and equipment damage.

WARNING

Hazardous voltage. Do not rely on the open position of the yellow 
operating handle or the contact position indicator; it does not ensure that 
the line has been de-energized. Always establish a visible disconnect. 
Failure to follow proper safety practices can result in contact with high 
voltage, which will cause death or severe personal injury.

WARNING

Hazardous voltage. Always use a hotstick when working with this 
equipment. Failure to do so could result in contact with high voltage, 
which will cause death or severe personal injury.

WARNING

Hazardous voltage. Never rely on the open position of the operating 
handle or the contact position indicator; it does not ensure that the line is 
de-energized. Follow all locally approved safety practices. Failure to 
comply can result in contact with high voltage, which will cause death or 
severe personal injury.

WARNING

Figure 13.

NOVA i recloser OPEN/CLOSE contact position indicator, 
nameplate, and manual OPEN handle.

OPEN/CLOSE Contact 

Position Indicator

Nameplate

Manual 

OPEN Handle

Summary of Contents for NOVA 15i

Page 1: ...Installation Form 6 FXD control settings Accessories Auxiliary switch Terminals Pole mounting hanger Arrester mounting brackets Substation mounting frame Service information Service requirements Freq...

Page 2: ...s situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION Indicat...

Page 3: ...oser and inspect it thoroughly for damage incurred during shipment If damage is discovered file a claim with the carrier immediately Handling and storage Be careful during handling and storage of the...

Page 4: ...100 9 4 kV 50 kV 45 kV 125 kV 100 16 4 kV 60 kV 50 kV 170 kV 100 23 0 kV 70 kV 60 kV Table 2 Current ratings A Description 15 kV 27 kV 38 kV Rated continuous current Short circuit current Symmetrical...

Page 5: ...Terminal to terminal 1180 79 Lower terminal to ground earth 671 45 NOVA 27i Terminal to terminal 1473 55 Lower terminal to ground earth 951 35 NOVA 38i Terminal to terminal 1763 46 Lower terminal to g...

Page 6: ...1E Effective January 2017 Figure 3 NOVA 15i recloser dimensions with 3 integrated voltage sensor option in load side Note All dimensions are mm Dimensions shown are approximate Terminal connectors Ter...

Page 7: ...converter board also houses voltage monitoring and conditioning circuits that protect the battery from failure and provide trip close operations without ac power In the absence of ac power to the ele...

Page 8: ...ices when making hitches and lifting the equipment Lift the unit smoothly and do not allow the unit to shift This equipment is not intended to protect human life Follow all locally approved procedures...

Page 9: ...ded on both sides Hazardous voltage Solidly ground all equipment Failure to comply can result in death severe personal injury and equipment damage WARNING Equipment Damage Do not adjust or rotate bush...

Page 10: ...of a grounding mat may be required depending upon the local safety regulations defining the permissible step and touch potential levels Consult local regulations for proper grounding procedures In pol...

Page 11: ...the equipment It is recommended to use a minimum of 50 sq mm copper wire for the pole ground connection to the recloser 2 Any ground wire of the equipment is not allowed to be connected to the neutra...

Page 12: ...quipment It is recommended to use a minimum of 50 sq mm copper wire for the pole ground connection to the recloser IMPORTANT All external inputs to the control must be routed within 203 mm of their co...

Page 13: ...his equipment is not intended to protect human life Follow all locally approved procedures and safety practices when installing or operating this equipment Failure to comply can result in death severe...

Page 14: ...tor located on the mechanism housing Provide a good electrical ground connection to the control cabinet ground Note Painted surfaces of the mechanism housing may prevent a ground connection to the rec...

Page 15: ...voltage sensor Energize recloser and confirm the voltage outputs in the control When the recloser is energized the output of the voltage sensor in 6 V based upon the Form 6 FXD control s input impeda...

Page 16: ...for a Wye connection Also the Phantom Phase feature must be disabled Refer to Service Information S280 70 4 for more information on programming the Form 6 FXD control Figure 16 Form 6 FXD control syst...

Page 17: ...tion to copper wires to optimize the electrical connection Anti oxide coatings for temporary protection of wire brushed aluminum cable connections to flat pad terminals must be maintained at intervals...

Page 18: ...ing brackets The arrester mounting bracket accessory see Figure 18 can be bolted to the recloser frame and pole mounting hanger for the addition of inboard and outboard arresters The arresters are not...

Page 19: ...vailable for substation mounting applications Figure 19 Dimensions of NOVA i recloser with substation mounting frame accessory Terminal options A Eyebolt 1 0 500 mcm 89 Cable range 630 A maximum Eyebo...

Page 20: ...gs settings and interface options on the recloser nameplate see Figure 6 are correct for the planned testing 2 Test electrical open and close operation Close and open the recloser contacts using the m...

Page 21: ...0 seconds TEST 2 1 Close the recloser contacts 2 Ground the recloser 3 Ground Phase A terminal 2 and Phase C terminal 6 4 Apply proper test voltage to Phase B terminal 3 5 The recloser should withstan...

Page 22: ...k to its original condition 1 Bypass and remove the recloser from service as described in this manual 2 Inspect module for damage to the terminals Remove any damaged terminals and replace 3 Inspect mo...

Page 23: ...S3 COM N O R1 C Open COM N C 52a MS1 R1 A VTC Pull Up 2 R1 E Close COM N O 52b MS2 R1 B VTC Pull Up 1 H2 H1 R1 U R1 V LEGEND SYMBOL DESCRIPTIO N AB Actuator Circuit Board AS Auxiliary Switch 3 Stage C...

Page 24: ...ts Reserved Printed in China Publication No IL01004001E November 2017 Eaton is a registered trademark of Eaton Corporation All other trademarks are property of their respective owners NOVA 15i NOVA 27...

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